1. Cov flocculants, coagulants thiab conditioners yog dab tsi?
Cov neeg sawv cev no tuaj yeem muab faib ua pawg hauv qab no raws li kev siv sib txawv hauv kev kho cov dej phwj tuaj:
Flocculant: qee zaum hu ua coagulant, nws tuaj yeem siv los ua ib txoj hauv kev los txhawb kev sib cais ntawm cov khoom khov thiab kua, siv rau hauv lub tank sedimentation thawj zaug, lub tank sedimentation thib ob, lub tank flotation thiab kev kho mob tertiary lossis cov txheej txheem kho siab heev.
Kev pab txhawb kev coagulation: Cov flocculants pabcuam ua lub luag haujlwm los txhim kho cov nyhuv coagulation.
Tshuaj pleev ib ce: Kuj hu ua tus neeg sawv cev dewatering, nws yog siv rau kev kho cov sludge seem ua ntej dewatering, thiab nws cov ntau yam suav nrog qee cov flocculants thiab coagulants uas tau hais los saum toj no.
2. Cov khoom ua kom cov dej khov
Cov tshuaj flocculants yog ib pawg ntawm cov tshuaj uas tuaj yeem txo lossis tshem tawm qhov kev ruaj khov ntawm cov nag lossis daus thiab kev ruaj khov ntawm cov khoom tawg hauv dej, thiab ua rau cov khoom tawg agglomerate thiab flocculate rau hauv cov aggregates rau kev tshem tawm.
Raws li cov tshuaj lom neeg muaj pes tsawg leeg, flocculants tuaj yeem muab faib ua cov flocculants inorganic thiab cov flocculants organic.
Cov tshuaj flocculants inorganic
Cov tshuaj flocculants inorganic ib txwm muaj cov ntsev txhuas molecular qis thiab cov ntsev hlau. Cov ntsev txhuas feem ntau suav nrog txhuas sulfate (AL2 (SO4) 3 ∙ 18 H2O), alum (AL2 (SO4) 3 ∙ K 2 SO 4 ∙ 24 H2O), sodium aluminate (NaALO3), cov ntsev hlau feem ntau suav nrog ferric chloride (FeCL3 ∙ 6 H20), ferrous sulfate (FeSO4 ∙ 6 H20) thiab ferric sulfate (Fe2 (SO4) 3 ∙ 2 H20).
Feem ntau hais lus, cov flocculants inorganic muaj cov yam ntxwv ntawm kev yooj yim ntawm cov khoom siv raw, kev npaj yooj yim, tus nqi qis, thiab kev kho mob nruab nrab, yog li lawv tau siv dav hauv kev kho dej.
Cov khoom siv flocculant inorganic polymer
Cov hydroxyl thiab oxygen-based polymers ntawm Al(III) thiab Fe(III) yuav raug sib xyaw ua ke rau hauv cov aggregates, uas yuav khaws cia rau hauv cov kua dej hauv qee qhov xwm txheej, thiab lawv qhov loj me yuav nyob hauv qhov ntau nanometer. Qhov tshwm sim ntawm kev siv tshuaj ntau.
Piv rau lawv cov tshuaj tiv thaiv thiab cov nqi polymerization, cov tshuaj tiv thaiv ntawm cov txhuas polymer yog mos dua thiab cov duab ruaj khov dua, thaum cov hydrolyzed polymer ntawm cov hlau reacts sai thiab yooj yim poob kev ruaj khov thiab precipitates.
Qhov zoo ntawm cov inorganic polymer flocculants tau pom tseeb tias nws ua haujlwm tau zoo dua li cov flocculants ib txwm muaj xws li txhuas sulfate thiab ferric chloride, thiab pheej yig dua li cov organic polymer flocculants. Tam sim no Polyaluminum chloride tau siv tau zoo hauv ntau yam kev kho dej, cov dej khib nyiab hauv kev lag luam thiab cov dej phwj hauv nroog, suav nrog kev kho ua ntej, kev kho nruab nrab thiab kev kho siab heev, thiab maj mam dhau los ua cov flocculant tseem ceeb. Txawm li cas los xij, hais txog morphology, qib ntawm polymerization thiab cov nyhuv coagulation-flocculation sib xws, cov inorganic polymer flocculants tseem nyob hauv qhov chaw ntawm cov hlau ntsev flocculants ib txwm muaj thiab cov organic polymer flocculants.
Polyaluminum chloride, pac, msds policloruro de aluminio, cas no 1327 41 9, policloruro de aluminio, pac tshuaj rau kev kho dej, poly aluminium chloride, hu ua PAC, muaj cov mis tshuaj ALn(OH)mCL3n-m. PAC yog ib qho electrolyte ntau yam uas tuaj yeem txo qhov colloidal charge ntawm cov av nplaum zoo li impurities (ntau qhov negative charges) hauv dej. Vim yog qhov loj ntawm molecular mass thiab muaj peev xwm adsorption zoo, cov flocs tsim yog loj dua, thiab kev ua haujlwm flocculation thiab sedimentation zoo dua li lwm cov flocculants.
Poly aluminium chloride muaj qib siab ntawm polymerization, thiab kev sib xyaw sai tom qab ntxiv tuaj yeem ua rau lub sijhawm tsim floc luv dua. Poly aluminium chloride PAC tsis tshua cuam tshuam los ntawm qhov kub ntawm dej, thiab nws ua haujlwm zoo thaum qhov kub ntawm dej qis. Nws txo qhov pH ntawm dej tsawg dua, thiab qhov pH ntau yam siv tau dav (tuaj yeem siv rau hauv qhov ntau ntawm pH = 5 ~ 9), yog li nws tsis tas yuav ntxiv cov neeg sawv cev alkaline. Cov koob tshuaj ntawm PAC yog me me, qhov ntau ntawm cov av nkos tsim tawm kuj me me, thiab kev siv, kev tswj hwm thiab kev ua haujlwm yooj yim dua, thiab nws kuj tsis tshua muaj corrosive rau cov khoom siv thiab cov kav dej. Yog li ntawd, PAC muaj kev nyiam hloov pauv txhuas sulfate maj mam hauv kev kho dej, thiab nws qhov tsis zoo yog tias tus nqi siab dua li cov flocculants ib txwm muaj.
Tsis tas li ntawd xwb, los ntawm qhov pom ntawm cov tshuaj chemistry,PAC poly txhuas chlorideyog cov khoom nruab nrab kinetic ntawm cov txheej txheem hydrolysis-polymerization-precipitation reaction ntawm txhuas ntsev, uas yog thermodynamically tsis ruaj khov. Feem ntau, cov khoom PAC kua yuav tsum tau siv rau lub sijhawm luv luv (cov khoom khov muaj kev ua haujlwm ruaj khov). , nws tuaj yeem khaws cia rau lub sijhawm ntev dua). Ntxiv qee cov ntsev inorganic (xws li CaCl2, MnCl2, thiab lwm yam) lossis macromolecules (xws li polyvinyl cawv, polyacrylamide, thiab lwm yam) tuaj yeem txhim kho kev ruaj khov ntawm PAC, thiab tuaj yeem ua rau muaj peev xwm sib koom ua ke ntau dua.
Hais txog cov txheej txheem ntau lawm, ib lossis ntau cov anions sib txawv (xws li SO42-, PO43-, thiab lwm yam) tau qhia rau hauv cov txheej txheem tsim khoom ntawm PAC, thiab cov qauv polymer thiab kev faib tawm morphological tuaj yeem hloov pauv mus rau qee qhov los ntawm polymerization, yog li txhim kho qhov ruaj khov thiab ua haujlwm tau zoo ntawm PAC; yog tias lwm cov khoom cationic, xws li Fe3 +, tau qhia rau hauv cov txheej txheem tsim khoom ntawm PAC los ua Al3 + thiab Fe3 + staggered hydrolytically polymerized, composite flocculant polyaluminum hlau tuaj yeem tau txais.
Cov khoom siv flocculant organic polymer
Cov khoom siv ua los ntawm cov polymer organic flocculants feem ntau yog polypropylene thiab polyethylene, xws li polyacrylamide thiab polyethyleneimine. Cov flocculants no yog cov macromolecules linear uas yaj tau hauv dej, txhua lub macromolecule muaj ntau lub units uas muaj cov pab pawg them, yog li lawv kuj hu ua polyelectrolytes. Cov uas muaj cov pab pawg them zoo yog cationic polyelectrolytes, thiab cov uas muaj cov pab pawg them tsis zoo yog anionic polyelectrolytes, uas tsis muaj cov pab pawg them zoo lossis tsis zoo, thiab hu ua nonionic polyelectrolytes.
Tam sim no, cov polymer flocculants uas siv ntau tshaj plaws yog anionic, thiab lawv tsuas yog ua lub luag haujlwm hauv kev pab cov coagulation ntawm cov khoom tsis zoo uas muaj nqi tsis zoo hauv dej. Feem ntau nws tsis tuaj yeem siv ib leeg, tab sis siv ua ke nrog cov ntsev txhuas thiab cov ntsev hlau. Cationic flocculants tuaj yeem ua lub luag haujlwm ntawm coagulation thiab flocculation tib lub sijhawm thiab siv ib leeg, yog li lawv tau tsim sai heev.
Tam sim no, polyacrylamide non-ionic polymers siv ntau dua hauv kuv lub tebchaws, uas feem ntau siv ua ke nrog cov ntsev hlau thiab txhuas. Cov hluav taws xob neutralization nyhuv ntawm cov ntsev hlau thiab txhuas ntawm cov khoom colloidal thiab cov haujlwm flocculation zoo heev ntawm cov polymer flocculants yog siv los tau txais cov txiaj ntsig kho mob zoo. Polyacrylamide muaj cov yam ntxwv ntawm cov tshuaj tsawg dua, ceev ceev coagulation, thiab cov flocs loj thiab tawv siv. 80% ntawm cov khoom siv organic polymer flocculants tam sim no tsim tawm hauv kuv lub tebchaws yog cov khoom no.
Polyacrylamide PAM, polyelectrolyte siv, polyelectrolyte cationic hmoov, cationic polyelectrolyte, cationic polymer, cationic polyacrylamide yog cov khoom siv hluavtaws organic polymer flocculant feem ntau siv, polyelectrolyte, thiab qee zaum siv ua coagulant. Cov khoom siv raw ntawm polyacrylamide yog polyacrylonitrile CH2 = CHCN. Nyob rau hauv qee qhov xwm txheej, acrylonitrile yog hydrolyzed los ua acrylamide, thiab acrylamide tom qab ntawd raug rau kev ncua polymerization kom tau txais polyacrylamide. Polyacrylamide yog cov resin soluble hauv dej, thiab cov khoom yog granular khoom thiab viscous aqueous kua nrog qee qhov concentration.
Qhov tseeb tiag ntawm polyacrylamide hauv dej yog random coil. Vim tias random coil muaj qee qhov loj me thiab qee cov amide pawg ntawm nws qhov chaw, nws tuaj yeem ua si lub peev xwm bridging thiab adsorption sib xws, uas yog, nws muaj qee qhov loj me. qee qhov peev xwm flocculation.
Txawm li cas los xij, vim tias cov saw ntev ntawm polyacrylamide yog curled rau hauv ib lub kauj, nws qhov ntau ntawm bridging yog me me. Tom qab ob pawg amide txuas nrog, nws yog sib npaug rau kev tshem tawm ntawm kev sib cuam tshuam thiab poob ntawm ob qhov chaw adsorption. Tsis tas li ntawd, qee cov pawg amide raug qhwv rau hauv cov qauv kauj. Sab hauv ntawm nws tsis tuaj yeem tiv tauj thiab nqus cov khoom tsis huv hauv dej, yog li nws lub peev xwm adsorption tsis tuaj yeem ua tiav.
Yuav kom cais cov pab pawg amide txuas ntxiv thiab nthuav tawm cov pab pawg amide zais rau sab nraud, tib neeg sim txuas lub kauj random kom raug, thiab txawm sim ntxiv qee pab pawg nrog cations lossis anions rau cov saw hlau ntev, thaum txhim kho qhov adsorption thiab bridging muaj peev xwm thiab cov nyhuv ntawm hluav taws xob neutralization thiab compression ntawm hluav taws xob ob txheej. Ua li no, ib qho series ntawm polyacrylamide flocculants lossis coagulants nrog cov khoom sib txawv tau muab los ntawm PAM.
Hauv kev kho cov dej khib nyiab, qee zaum ib qho flocculant tsis tuaj yeem ua tiav qhov zoo ntawm kev sib xyaw ua ke, thiab feem ntau nws yog qhov tsim nyog los ntxiv qee cov neeg sawv cev pabcuam los txhim kho cov nyhuv sib xyaw ua ke. Tus neeg sawv cev pabcuam no hu ua kev pabcuam sib xyaw ua ke. Cov coagulants feem ntau siv yog chlorine, txiv qaub ntsuab, activated silicic acid, pob txha nplaum thiab sodium alginate, activated carbon thiab ntau yam av nplaum.
Qee cov tshuaj coagulants lawv tus kheej tsis ua lub luag haujlwm hauv kev coagulation, tab sis los ntawm kev kho thiab txhim kho cov xwm txheej coagulation, lawv ua lub luag haujlwm los pab cov flocculants los tsim cov teebmeem coagulation. Qee cov coagulants koom nrog kev tsim cov flocs, txhim kho cov qauv ntawm cov flocs, thiab tuaj yeem ua rau cov flocs zoo thiab xoob uas tsim los ntawm cov inorganic flocculants ua cov flocs ntxhib thiab nruj.
4. Tshuaj pleev ib ce
Cov tshuaj pleev kom qhuav, tseem hu ua cov tshuaj ua kom qhuav, muaj peev xwm muab faib ua ob pawg: cov tshuaj pleev kom qhuav inorganic thiab cov tshuaj pleev kom qhuav organic. Cov tshuaj pleev kom qhuav inorganic feem ntau yog siv rau kev lim dej nqus tsev thiab kev lim phaj thiab thav duab ntawm cov sludge, thaum cov tshuaj pleev kom qhuav organic yog siv rau kev lim dej centrifugal thiab kev lim siv txoj siv lim dej kom qhuav cov sludge.
5. kev sib raug zoo ntawmcov tshuaj flocculants, coagulants, thiab conditioners
Tus neeg sawv cev dehydrating yog tus neeg sawv cev ntxiv ua ntej cov sludge raug dehydrated, uas yog, tus neeg sawv cev txias ntawm cov sludge, yog li lub ntsiab lus ntawm tus neeg sawv cev dehydrating thiab tus neeg sawv cev txias yog tib yam. Cov koob tshuaj ntawm tus neeg sawv cev dewatering lossis tus neeg sawv cev txias feem ntau yog suav ua feem pua ntawm qhov hnyav ntawm cov khoom qhuav ntawm cov sludge.
Cov tshuaj flocculants siv los tshem tawm cov khoom khov uas raug tshem tawm hauv cov dej phwj tuaj thiab yog cov neeg sawv cev tseem ceeb hauv kev kho dej. Feem ntau, cov tshuaj flocculant yog qhia los ntawm qhov ntau ntxiv rau hauv qhov ntim ntawm cov dej uas yuav tsum tau kho.
Qhov ntau npaum li cas ntawm cov tshuaj dehydrating agent (conditioning agent), flocculant, thiab coagulation aid tuaj yeem hu ua qhov ntau npaum li cas. Tib yam tshuaj no tuaj yeem siv ua flocculant hauv kev kho cov dej phwj tuaj, thiab tuaj yeem siv ua conditioner lossis dewatering agent hauv kev kho cov sludge ntau dhau.
Cov tshuaj coagulants hu ua coagulants thaum lawv siv ua flocculants hauv kev kho dej. Cov coagulants zoo sib xws feem ntau tsis hu ua coagulants hauv kev kho cov sludge ntau dhau, tab sis feem ntau hu ua conditioners lossis dehydrating agents.
Thaum siv ib qhocov khoom ua kom cov dej khov, vim tias qhov ntau ntawm cov khoom khov kho hauv dej muaj tsawg, txhawm rau kom ua tiav kev sib cuag tag nrho ntawm cov flocculant thiab cov khoom tawg, cov chaw sib tov thiab cov tshuaj tiv thaiv yuav tsum tau nruab nrog lub sijhawm txaus. Piv txwv li, kev sib tov siv sijhawm kaum vib nas this mus rau ob peb feeb, Cov tshuaj tiv thaiv yuav tsum tau siv sijhawm 15 txog 30 feeb. Thaum sludge raug dewatered, nws feem ntau tsuas yog siv sijhawm kaum ob peb vib nas this los ntawm thaum cov tshuaj txias ntxiv rau cov sludge nkag mus rau hauv lub tshuab dewatering, uas yog, tsuas yog cov txheej txheem sib tov sib npaug rau flocculant, thiab tsis muaj sijhawm tiv thaiv, thiab kev paub kuj tau qhia tias cov nyhuv txias yuav nce nrog qhov nyob. txo qis dhau sijhawm.
Cov cuab yeej ua haujlwm zoo, cov neeg ua haujlwm muag khoom tsim nyog, thiab cov neeg muab kev pabcuam tom qab muag zoo dua; Peb kuj yog ib tus txij nkawm thiab menyuam loj sib koom ua ke, txhua tus neeg ua raws li tus nqi ntawm lub tuam txhab "kev koom ua ke, kev mob siab rau, kev kam rau siab" rau 100% Lub Hoobkas Thawj Tuam Tshoj Apam Anionic Polyacrylamide PAM rau Crude Oil Petroleum,Yixing Cleanwater Chemicals Co., Ltd.. muaj kev paub txog cov chaw tsim khoom nrog ntau tshaj 100 tus neeg ua haujlwm. Yog li peb tuaj yeem lav lub sijhawm luv luv thiab kev lees paub zoo.
Yuav ntau dua thiab txuag tau ntau dua 100% Lub Hoobkas Thawj Tuam Tshoj Anionic Polyacrylamide, chitosan, drilling polymer, pac, pam, decoloring agent, dicyandiamide, polyamines, defoamer, bacteria agent, Cleanwat yuav txuas ntxiv ua raws li "zoo tshaj plaws, muaj koob npe nrov, tus neeg siv ua ntej" txoj cai tag nrho. Peb zoo siab tos txais cov phooj ywg los ntawm txhua qhov chaw ntawm lub neej tuaj xyuas thiab muab kev taw qhia, ua haujlwm ua ke thiab tsim lub neej yav tom ntej ci ntsa iab!
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Lub sijhawm tshaj tawm: Lub Xya Hli-09-2022